Journal Published Online: 07 September 2018
Volume 47, Issue 6

Crack Propagation of Rapid Setting Latex-Modified Concrete Pavement Slabs under Vibration

CODEN: JTEVAB

Abstract

In recent years, rapid setting latex-modified concrete (RS-LMC), which allows vehicular traffic to flow after only 3 h of being placed, has been widely used as a material for improving bridge decks. As the restrictions for vehicular traffic when conducting repair work on pavements are difficult, bridge deck improvements using RS-LMC are exposed to vibrations during the initial curing stages, and cracks are generated because of the passing vehicles. To identify the characteristics of cracks caused by vibrations during the initial curing stage of RS-LMC, twelve specimens of this material were created and studied. Vibration tests were performed using a pavement shaking table, which simulates the vibration conditions of actual bridges. In this research, the main test variables were the amplitude of vibration and the latex-cement ratio (L/C). Test results revealed that the number and total cracks decreased with an increasing L/C, until 15 % L/C. Further, cracks occurred at a much lower strain rate than that stated by conventional design standards.

Author Information

Jeong, Je-Pyong
Department of Civil Engineering, Honam University, Gwangju, Gwangsan-gu, Republic of Korea
Kang, Dae-Hung
Department of Civil Engineering, Dongsin University, Naju-si, Jeollanam-do, Republic of Korea
Koh, Chulseung
Civil Engineering & Environment Examination Division, Korean Intellectual Patent Office, Seo-gu, Daejeon, Republic of Korea
Pages: 16
Price: $25.00
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Details
Stock #: JTE20170550
ISSN: 0090-3973
DOI: 10.1520/JTE20170550